It helps, I spent 6 weeks in dubai and any agency I registered with or job interview I had they asked about qualifications and were looking for them to a degree/BA/Masters level.
I have a diploma in HR but it did not seem to be good enough. I had to come home in the end as any other jobs that were available to me were very badly paid and its an expensive place to live.
Also, a lot of jobs look for men. Well that was my experience anyway, if you look up jobs on the net you will see under requirements that males are their preference when offering jobs. I have a friend over there and she was there working for 5 years before she got in any way recognised for her qualifications and starting being paid to reflect her experience etc.
I'm really not sure about advertising though, could be a totally different ball game there, I'm just talking from my own experience.
Sorry my post is not the most helpful or hopeful but like I said that was my experience and I had to come home.